I bought this for office use to easily transfer files because I had misplaced the one I have had for years. This one was on sale and the price was great. I thought the slide feature would be better than the flip feature of my old one. This slide doesn't lock properly. When putting it into the USB port the end slides back into the casing. It normally takes a couple of tries holding the locking button while inserting into the port...would NOT recommend this to others. It needs to be re-designed.